From: Peter Zijlstra <peterz@infradead.org>
To: Hillf Danton <dhillf@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mike Galbraith <efault@gmx.de>,
Yong Zhang <yong.zhang0@gmail.com>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH] sched: fix conflict of schedule domain balance in RT scheduling
Date: Thu, 02 Jun 2011 13:56:29 +0200 [thread overview]
Message-ID: <1307015789.2497.640.camel@laptop> (raw)
In-Reply-To: <BANLkTikoVj42S1iBHU_xFEpuGxY+TqmweA@mail.gmail.com>
On Wed, 2011-06-01 at 21:58 +0800, Hillf Danton wrote:
> SD_BALANCE_WAKE and SD_WAKE_AFFINE are defined to be mutually
> exclusive
Uhm, no they're not.. both affect placement of a woken task but they're
complementary. WAKE_AFFINE is a check to see if it makes sense to run
the woken task on the same cpu as the wakee, BALANCE_WAKE does a full
load-balance pass, in case its combined with WAKE_AFFINE it does so in
case that test is negative.
next prev parent reply other threads:[~2011-06-02 11:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-01 13:58 Hillf Danton
2011-06-02 11:56 ` Peter Zijlstra [this message]
2011-06-03 14:38 ` Hillf Danton
2011-06-03 14:19 ` Steven Rostedt
2011-06-03 14:30 ` Hillf Danton
2011-06-03 14:52 ` Steven Rostedt
2011-06-03 15:21 ` Hillf Danton
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